Subject: Re: Huffman sequences From: Andrea Valle <andrea.valle@xxxxxxxx> Date: Fri, 21 Aug 2009 23:34:18 +0200 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>--Apple-Mail-54--147164768 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Thanks Henrik, do you know if they're accessible on line? (Do you of implementations?) Best -a- On Aug 20, 2009, at 6:17 PM, Henrik M=F8ller wrote: > Hi Andrea > > Huffman sequences are truncated impulse responses of all-pass =20 > sections. > > In addition to Patterson and Green (1970), you may want to read =20 > their reference: D. A. Huffman, =93The Generation of Impulse-=20 > Equivalent Pulse Trains,=94 IRE Trans. Inform. Technol., vol. IT-8, =20= > pp. S10-S16 (1962). > > Regards, > > Henrik > > Henrik M=F8ller > Professor > > Section of Acoustics, Department of Electronic Systems > Aalborg University > Fredrik Bajers Vej 7 B5 > DK-9220 Aalborg =D8, Denmark > > Phone: +45 9940 8711 (direct) > Phone: +45 9940 8710 (section office) > Phone: +45 9940 9940 (switchboard) > Fax: +45 9815 2144 (section office) > > mailto:hm@xxxxxxxx (personal) > mailto:acoustics@xxxxxxxx (section office) > http://acoustics.aau.dk > > > Andrea Valle skrev: >> >> Dear List, >> >> I know Hufmann coding but I never heard of Hufmann sequences as =20 >> audio signals. Now, I'm re-reading Moore citing Patterson and Green =20= >> (1970) about Hufmann sequences discrimination task. >> Could anyone share some info? (if possible, I'd like to =20 >> resynthesize them for didactical purposes) >> >> Thanks a lot >> >> Best >> >> -a- >> >> -------------------------------------------------- >> Andrea Valle >> -------------------------------------------------- >> CIRMA - DAMS >> Universit=E0 degli Studi di Torino >> --> http://www.cirma.unito.it/andrea/ >> --> http://www.myspace.com/andreavalle >> --> http://www.flickr.com/photos/vanderaalle/ >> --> http://www.youtube.com/user/vanderaalle >> --> andrea.valle@xxxxxxxx >> -------------------------------------------------- >> >> - La Repubblica promuove lo sviluppo della cultura e la ricerca =20 >> scientifica e tecnica. >> - La Repubblica detta le norme generali sull'istruzione ed =20 >> istituisce scuole statali per tutti gli ordini e gradi. >> (Costituzione della Repubblica Italiana, art. 9 e 33 >> -------------------------------------------------- Andrea Valle -------------------------------------------------- CIRMA - DAMS Universit=E0 degli Studi di Torino --> http://www.cirma.unito.it/andrea/ --> http://www.myspace.com/andreavalle --> http://www.flickr.com/photos/vanderaalle/ --> http://www.youtube.com/user/vanderaalle --> andrea.valle@xxxxxxxx -------------------------------------------------- - La Repubblica promuove lo sviluppo della cultura e la ricerca =20 scientifica e tecnica. - La Repubblica detta le norme generali sull'istruzione ed istituisce =20= scuole statali per tutti gli ordini e gradi. (Costituzione della Repubblica Italiana, art. 9 e 33 --Apple-Mail-54--147164768 Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable <html><body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; = -webkit-line-break: after-white-space; ">Thanks Henrik,<div> do you = know if they're accessible on line?</div><div>(Do you of = implementations?)</div><div><br></div><div>Best</div><div><br></div><div>-= a-</div><div><br></div><div><div>On Aug 20, 2009, at 6:17 PM, Henrik = M=F8ller wrote:</div><br class=3D"Apple-interchange-newline"><blockquote = type=3D"cite"> <div bgcolor=3D"#ffffff" text=3D"#000000"> Hi Andrea<br> = <br> Huffman sequences are truncated impulse responses of all-pass = sections.<br> <br> In addition to Patterson and Green (1970), you may = want to read their reference: D. A. Huffman, =93The Generation of = Impulse-Equivalent Pulse Trains,=94 IRE Trans. Inform. Technol., vol. = IT-8, pp. S10-S16 (1962).<br> <br> Regards,<br> <br> Henrik<br> <br> = <pre class=3D"moz-signature" cols=3D"72">Henrik M=F8ller Professor Section of Acoustics, Department of Electronic Systems Aalborg University Fredrik Bajers Vej 7 B5 DK-9220 Aalborg =D8, Denmark Phone: +45 9940 8711 (direct) Phone: +45 9940 8710 (section office) Phone: +45 9940 9940 (switchboard) Fax: +45 9815 2144 (section office) <a class=3D"moz-txt-link-freetext" = href=3D"mailto:hm@xxxxxxxx">mailto:hm@xxxxxxxx</a> = (personal) <a class=3D"moz-txt-link-freetext" = href=3D"mailto:acoustics@xxxxxxxx">mailto:acoustics@xxxxxxxx= dk</a> (section office) <a class=3D"moz-txt-link-freetext" = href=3D"http://acoustics.aau.dk">http://acoustics.aau.dk</a></pre> <br> = <br> Andrea Valle skrev: <blockquote = cite=3D"mid:20090820145422.877964668@xxxxxxxx" = type=3D"cite">Dear List, <div><br> </div> <div>I know Hufmann coding = but I never heard of Hufmann sequences as audio signals. Now, I'm = re-reading Moore citing Patterson and Green (1970) about Hufmann = sequences discrimination task.</div> <div>Could anyone share some info? = (if possible, I'd like to resynthesize them for didactical = purposes)</div> <div><br> </div> <div>Thanks a lot</div> <div><br> = </div> <div>Best</div> <div><br> </div> <div>-a-</div> <div><br> = </div> <div> <span class=3D"Apple-style-span" style=3D"border-collapse: = separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; = font-style: normal; font-variant: normal; font-weight: normal; = letter-spacing: normal; line-height: normal; orphans: 2; text-indent: = 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: = 0px;"> <div style=3D""><span class=3D"Apple-style-span" = style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: = Helvetica; font-size: 12px; font-style: normal; font-variant: normal; = font-weight: normal; letter-spacing: normal; line-height: normal; = orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; = widows: 2; word-spacing: 0px;"> <div style=3D""> <div> = <div>--------------------------------------------------</div> = <div>Andrea Valle</div> = <div>--------------------------------------------------</div> = <div>CIRMA - DAMS</div> <div>Universit=E0 degli Studi di Torino</div> = <div>--> <a moz-do-not-send=3D"true" = href=3D"http://www.cirma.unito.it/andrea/" = target=3D"_blank">http://www.cirma.unito.it/andrea/</a></div> = <div>--> <a moz-do-not-send=3D"true" = href=3D"http://www.myspace.com/andreavalle" = target=3D"_blank">http://www.myspace.com/andreavalle</a></div> = <div>--> <a moz-do-not-send=3D"true" = href=3D"http://www.flickr.com/photos/vanderaalle/" = target=3D"_blank">http://www.flickr.com/photos/vanderaalle/</a></div> = <div>--> <a moz-do-not-send=3D"true" = href=3D"http://www.youtube.com/user/vanderaalle" = target=3D"_blank">http://www.youtube.com/user/vanderaalle</a></div> = <div>--> <a moz-do-not-send=3D"true" = href=3D"mailto:andrea.valle@xxxxxxxx" = target=3D"_blank">andrea.valle@xxxxxxxx</a></div> = <div>--------------------------------------------------</div> <div><br> = </div> <div>- La Repubblica promuove lo sviluppo della cultura e la = ricerca scientifica e tecnica.</div> <div>- La Repubblica detta le = norme generali sull'istruzione ed istituisce scuole statali per tutti = gli ordini e gradi.</div> <div>(Costituzione della Repubblica Italiana, = art. 9 e 33</div> </div> </div> </span></div> </span> </div> <br> = </blockquote> </div> </blockquote></div><br><div> <span = class=3D"Apple-style-span" style=3D"border-collapse: separate; color: = rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: = normal; font-variant: normal; font-weight: normal; letter-spacing: = normal; line-height: normal; orphans: 2; text-align: auto; text-indent: = 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: = 0px; -webkit-border-horizontal-spacing: 0px; = -webkit-border-vertical-spacing: 0px; = -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: = auto; -webkit-text-stroke-width: 0; "><div style=3D"word-wrap: = break-word; -webkit-nbsp-mode: space; -webkit-line-break: = after-white-space; "><span class=3D"Apple-style-span" = style=3D"border-collapse: separate; color: rgb(0, 0, 0); font-family: = Helvetica; font-size: 12px; font-style: normal; font-variant: normal; = font-weight: normal; letter-spacing: normal; line-height: normal; = orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; = widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; = -webkit-border-vertical-spacing: 0px; = -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: = auto; -webkit-text-stroke-width: 0px; "><div style=3D"word-wrap: = break-word; -webkit-nbsp-mode: space; -webkit-line-break: = after-white-space; = "><div><div>--------------------------------------------------</div><div>A= ndrea = Valle</div><div>--------------------------------------------------</div><d= iv>CIRMA - DAMS</div><div>Universit=E0 degli Studi di = Torino</div><div>--> <a href=3D"http://www.cirma.unito.it/andrea/"= = target=3D"_blank">http://www.cirma.unito.it/andrea/</a></div><div>-->&n= bsp;<a href=3D"http://www.myspace.com/andreavalle" = target=3D"_blank">http://www.myspace.com/andreavalle</a></div><div>-->&= nbsp;<a href=3D"http://www.flickr.com/photos/vanderaalle/" = target=3D"_blank">http://www.flickr.com/photos/vanderaalle/</a></div><div>= --> <a href=3D"http://www.youtube.com/user/vanderaalle" = target=3D"_blank">http://www.youtube.com/user/vanderaalle</a></div><div>--= > <a href=3D"mailto:andrea.valle@xxxxxxxx" = target=3D"_blank">andrea.valle@xxxxxxxx</a></div><div>--------------------= ------------------------------</div><div><br></div><div>- La Repubblica = promuove lo sviluppo della cultura e la ricerca scientifica e = tecnica.</div><div>- La Repubblica detta le norme generali = sull'istruzione ed istituisce scuole statali per tutti gli ordini e = gradi.</div><div>(Costituzione della Repubblica Italiana, art. 9 e = 33</div></div></div></span></div></span> </div><br></body></html>= --Apple-Mail-54--147164768--